Weather StoryAlmanac, microseasons, and the day's weather story.

Weather in Northbrook, Illinois

Roses open along the stoops. Day 59 of spring. Read this microseason across nine climate regions →

Northbrook, IL
Sunday, May 17 at 5:59 AM
70
°
Overcast
Feels like
68°
Humidity
68%
Wind
10 mph
Sunrise
5:28 AM
Sunset
8:07 PM
Northbrook, IL
Hour by hour · 24h
50°
12a
49°
1a
49°
2a
52°
17%
3a
52°
11%
4a
52°
5a
53°
6a
57°
7a
61°
8a
63°
9a
62°
10a
65°
11a
66°
12p
69°
1p
71°
2p
73°
3p
75°
4p
75°
5p
75°
6p
73°
7p
70°
8p
66°
9p
67°
10p
65°
11p
L 49°H 75°
Northbrook, IL
7-day forecast
  1. Today
    May 17
    Overcast
    36%
    87°62°
  2. Monday
    May 18
    Showers
    59%
    81°67°
  3. Tuesday
    May 19
    Light Showers
    53%
    75°55°
  4. Wednesday
    May 20
    Overcast
    11%
    56°46°
  5. Thursday
    May 21
    Overcast
    62°46°
  6. Friday
    May 22
    Light Drizzle
    11%
    55°47°
  7. Saturday
    May 23
    Light Drizzle
    11%
    67°46°
Northbrook, IL
Anemometer · 24h winds · from true
NESW
From · True
SSW
208° · backing 42°
Direction
SSW
208°
Sustained
10
mph
Gust
24
mph
Peak 24h
30
avg 8
Beaufort · 3 · GENTLE BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 8 · pk 30 @ 7:00a
−24h−18h−12h−6hnow
Light breeze backing 42° from the ssw.
Northbrook, IL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
987.6
+0.2 mb in 3h · rising · 29.16 inHg
Now
987.6
mb
3h
+0.2
mb
12h
+0.7
mb
24h
+3.3
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 983989
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Northbrook, IL
Air quality
48
AQI
Good
PM 2.5
6.9 μg/m³
PM 10
7.9 μg/m³
NO₂
15.1 μg/m³
Ozone
77.0 μg/m³
UV Index
0.0 Low
Northbrook, IL
Almanac · Sunday, May 17
When the dew is on the grass, rain will never come to pass.
Civil dawn
9:57 AM
Sunrise
5:28 AM
Daylight
14h 39m
Sunset
8:07 PM
Civil dusk
1:40 AM
Planting note
Direct sow okra, melons, and southern peas. Thin carrot rows.
Northbrook, IL
The moon
New Moon
0% illuminated
Moonrise
10:32 AM
Moonset
1:38 AM
In sign
♊︎ Gemini
Northbrook, IL
Microseason · 28 of 72
May 16–20

Roses open along the stoops

plant
Jan 137% of the yearDec 31

Read this microseason across nine climate regions →

Northbrook at a glance

  • Today vs. normal: 70°F — typical for the season
  • Last frost: April 29 (climatological average for this latitude)
  • Microseason: 28 of 72, May 16–20
  • Planting window: Direct sow okra, melons, and southern peas. Thin carrot rows.

Right now in the garden

Cool-season window is open

As of May 17, the cool-season window is open or about to open. Direct-sow peas, lettuce, spinach, radishes, and brassicas now. Hold off on warm-season crops until 1–2 weeks after the last spring frost (around May).

ZIP codes in Northbrook

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.